This LPIC-1 practice question tests your understanding of devices, filesystems and fhs. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
According to the Filesystem Hierarchy Standard (FHS), which directory contains essential system binaries required during boot?
/usr/bin
Why wrong: Incorrect: /usr/bin contains user binaries, not essential for boot.
/usr/local/bin
Why wrong: Incorrect: /usr/local/bin is for locally installed software, not essential for boot.
/sbin
Correct: /sbin holds system binaries needed for booting and system repair.
/bin
Why wrong: Incorrect: /bin contains user binaries, some of which are essential, but /sbin is specifically for system binaries.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
/sbin
According to the Filesystem Hierarchy Standard (FHS), /sbin contains essential system binaries required for booting, repairing, and recovering the system. These binaries are critical before /usr is mounted, such as fsck, init, and route. While /bin also contains essential binaries, the FHS specifically designates /sbin for system administration binaries needed during boot.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
/usr/bin
Why it's wrong here
Incorrect: /usr/bin contains user binaries, not essential for boot.
/usr/local/bin
Why it's wrong here
Incorrect: /usr/local/bin is for locally installed software, not essential for boot.
/sbin
Why this is correct
Correct: /sbin holds system binaries needed for booting and system repair.
Related concept
Read the scenario before looking for a memorised answer.
/bin
Why it's wrong here
Incorrect: /bin contains user binaries, some of which are essential, but /sbin is specifically for system binaries.
Common exam traps
The trap here is that candidates confuse /bin with /sbin, assuming both contain essential boot binaries, but the FHS specifically assigns system administration binaries to /sbin, and /bin is often a symlink to /usr/bin on modern systems, making it non-essential during early boot.
Detailed technical explanation
The FHS (Filesystem Hierarchy Standard, version 3.0) mandates that /sbin contains binaries essential for system administration and recovery, such as mount, swapon, and fdisk, which must be available before /usr is mounted. In practice, many Linux distributions (e.g., Fedora, Arch) have merged /bin into /usr/bin via a symlink, but /sbin remains separate to ensure that system recovery tools are accessible even if /usr fails to mount. This separation is crucial during single-user mode or emergency shell scenarios where only the root filesystem is available.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Devices, Filesystems and FHS — This question tests Devices, Filesystems and FHS — Read the scenario before looking for a memorised answer..
The correct answer is: /sbin — According to the Filesystem Hierarchy Standard (FHS), /sbin contains essential system binaries required for booting, repairing, and recovering the system. These binaries are critical before /usr is mounted, such as fsck, init, and route. While /bin also contains essential binaries, the FHS specifically designates /sbin for system administration binaries needed during boot.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This LPIC-1 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-1 exam.
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